CN202372170U - Static level instrument - Google Patents
Static level instrument Download PDFInfo
- Publication number
- CN202372170U CN202372170U CN2011205115658U CN201120511565U CN202372170U CN 202372170 U CN202372170 U CN 202372170U CN 2011205115658 U CN2011205115658 U CN 2011205115658U CN 201120511565 U CN201120511565 U CN 201120511565U CN 202372170 U CN202372170 U CN 202372170U
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- CN
- China
- Prior art keywords
- liquid container
- intelligent
- liquid
- intelligent transmitter
- intelligent transducer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a static level instrument. The static level instrument comprises a liquid container, an intelligent transmitter cabin, an intelligent transmitter and a bracket, wherein the intelligent transmitter is arranged on the lower side of the central bottom of the bracket; the liquid container and the intelligent transmitter cabin are transversely divided into two parts by the bracket; and a liquid communicating opening formed in the static level instrument at a datum point and a liquid communicating opening formed in the static level instrument at a measuring point are connected in series with each other by a liquid communicating pipe. The static level instrument is characterized in that a liquid container air hole is formed on the internal top of the liquid container, and an intelligent transmitter cabin air hole is formed on the upper side wall of the intelligent transmitter cabin; the intelligent transmitter is connected with a gauge pressure type pressure sensor and converts the pressure signal of the gauge pressure type pressure sensor into a digital serial signal; and active serial bus connectors which are used for transmitting the digital serial signal to a control center are arranged on the two side walls of the intelligent transmitter cabin for the intelligent transmitter. The static level instrument is not influenced by the variation of atmosphere, liquid levels and temperatures, and measurement errors are reduced.
Description
Technical field
The utility model relates to a kind of spirit-leveling instrument, particularly discloses a kind of hydrostatic level, belongs to the civil engineering work detection range.
Background technology
Construct on the ground, can cause all that like buildings, bridge, dam etc. settlement of foundation, hydrostatic level are the common equipments of this type of monitoring sedimentation.Hydrostatic level in the past adopts the float-type detection method mostly, converts water level into electric signal with displacement transducer, reads through secondary instrument again.These class methods have two significant defectives: be exactly that the volume of liquid receives atmospheric pressure and Influence of Temperature remarkable.Can cause bigger measuring error.For eliminating these influences, need extra increase temperature and air pressure detecting sensor, and measure the temperature and the atmospheric pressure influence curve (normally nonlinear) of this liquid in advance, in the water level reading, deduct these errors.So just increased the monitoring cost significantly.And the height of sensor increases with the increase of instrument detecting height in this type hydrostatic level.Make the height of instrument of wide range usually more than the twice greater than range.
Summary of the invention
The purpose of the utility model is the defective that solves existing static level monitoring system, designs a kind of hydrostatic level that not influenced by temperature, atmospheric pressure.
The utility model is achieved in that a kind of hydrostatic level; Comprise liquid container, intelligent transducer storehouse, intelligent transducer and support; Intelligent transducer is installed in the center bottom downside of support; Said support becomes the two large divisions with liquid container with intelligent transducer storehouse tabula, and the liquid in the liquid container can not penetrate in the intelligent transducer storehouse, and the fluid connection mouth and the fluid connection mouth of the hydrostatic level on the measurement point that are located on the hydrostatic level of reference point are contacted with the fluid connection pipe each other; It is characterized in that: the top in the said liquid container is provided with the liquid container air hole, and intelligent transducer storehouse upper side wall is provided with intelligent transducer storehouse air hole.Said intelligent transducer is connected with gauge pressure formula pressure transducer; Convert the pressure signal of gauge pressure formula pressure transducer to digital serial signal, said intelligent transducer is provided with the active serial bus connector that digital serial signal is transferred to control center in two side, intelligent transducer storehouse.
Because the pressure-sensitive face of gauge pressure formula sensor is equal and atmosphere with the back side, then can in testing process, offset atmospheric influence.Non-solidify or vaporized state under, the quality of liquid can not change with temperature variation.Therefore adopt gauge pressure formula pressure transducer to detect liquid level and do not receive atmospheric pressure and influence of temperature variation.
Gauge pressure formula sensor be the pressure of liquid, converting through pressure-elevation to obtain level value.
The pressure elevation converts and can accomplish through following formula:
Wherein:
PBe force value,
ρBe density of liquid,
gBe acceleration of gravity,
hHeight for benchmark vessel level to pressure transducer pressure-sensitive face.
If specify a hydrostatic level elevation in the static level monitoring system
h 0 Be relative datum, then the difference in height of other hydrostatic level then can be described as:
，
Wherein:
iNumbering for hydrostatic level.
So just can measure the elevation change amount of each monitoring point, hydrostatic level place.
The beneficial effect of the utility model is: because the utility model adopts gauge pressure formula pressure transducer perception liquid level, so do not receive atmospheric pressure and liquid level influence of temperature variation, reduced measuring error.
Description of drawings
Fig. 1 is the utility model hydrostatic level structured flowchart.
Among the figure: 1, liquid container air hole; 2, liquid container; 3, liquid; 4, fluid connection mouth; 5, support; 6, intelligent transducer storehouse air hole; 7, active serial bus connector; 8, intelligent transducer storehouse; 9, intelligent transducer; 10, gauge pressure formula pressure transducer.
Embodiment
According to accompanying drawing, a kind of hydrostatic level of the utility model comprises liquid container 2, intelligent transducer storehouse 8, intelligent transducer 9 and support 5.Intelligent transducer 8 is installed in the center bottom downside of support 5; Support 5 becomes the two large divisions with liquid container 2 with intelligent transducer storehouse 8 tabulas; Liquid in the liquid container 2 can not penetrate in the intelligent transducer storehouse 8, and the fluid connection mouth 4 that is located at the hydrostatic level on fluid connection mouth 4 and the measurement point on the hydrostatic level of reference point is contacted with the fluid connection pipe each other.Top in the liquid container 2 is provided with liquid container air hole 1, and intelligent transducer storehouse 8 upper side walls are provided with intelligent transducer storehouse air hole 6.Intelligent transducer 9 is connected with gauge pressure formula pressure transducer 10; Convert the pressure signal of gauge pressure formula pressure transducer 10 to digital serial signal, intelligent transducer 9 is provided with the active serial bus connector 7 that digital serial signal is transferred to control center in 8 two sides, intelligent transducer storehouse.
Through the fluid connection pipe liquid container 2 is linked to each other with the liquid container of other hydrostatic level, makes all hydrostatic levels in the static liquid level measure, though difference of elevation what, liquid 3 wherein all is maintained at the same horizontal plane.Active serial bus connector 7 links to each other each intelligent transducer 9 of each hydrostatic level in the static liquid level; Make that obtaining force value from gauge pressure formula pressure transducer 10 converts digital serial signal into through intelligent transducer 9, is transferred to control center through active serial bus connector 7 again.
The utility model has solved the problem that the static level instrument system is subject to temperature, change of atmospheric pressure influence.Because the volume in electric storehouse is fixed, so the size of hydrostatic level can not increase with the growth of measuring height, in the measurement than wide range, remarkable advantages is arranged.
Claims (2)
1. hydrostatic level; Comprise liquid container, intelligent transducer storehouse, intelligent transducer and support; Intelligent transducer is installed in the center bottom downside of support; Said support becomes the two large divisions with liquid container with intelligent transducer storehouse tabula, and the liquid in the liquid container can not penetrate in the intelligent transducer storehouse, and the fluid connection mouth and the fluid connection mouth of the hydrostatic level on the measurement point that are located on the hydrostatic level of reference point are contacted with the fluid connection pipe each other; It is characterized in that: the top in the said liquid container is provided with the liquid container air hole, and intelligent transducer storehouse upper side wall is provided with intelligent transducer storehouse air hole.
2. according to the described a kind of hydrostatic level of claim 1; It is characterized in that: said intelligent transducer is connected with gauge pressure formula pressure transducer; Convert the pressure signal of gauge pressure formula pressure transducer to digital serial signal, said intelligent transducer is provided with the active serial bus connector that digital serial signal is transferred to control center in two side, intelligent transducer storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205115658U CN202372170U (en) | 2011-12-09 | 2011-12-09 | Static level instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205115658U CN202372170U (en) | 2011-12-09 | 2011-12-09 | Static level instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372170U true CN202372170U (en) | 2012-08-08 |
Family
ID=46595867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205115658U Expired - Lifetime CN202372170U (en) | 2011-12-09 | 2011-12-09 | Static level instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372170U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575252A (en) * | 2013-11-04 | 2014-02-12 | 河海大学 | Miniature static pressure gauge for monitoring settlement of soft soil roadbed of highway |
| CN105651248A (en) * | 2016-03-31 | 2016-06-08 | 浙江中浩应用工程技术研究院有限公司 | Ceramic hydrostatic level |
| CN114413840A (en) * | 2021-11-13 | 2022-04-29 | 国网辽宁省电力有限公司沈阳供电公司 | Intelligent Internet of things differential pressure type static level gauge and detection system |
-
2011
- 2011-12-09 CN CN2011205115658U patent/CN202372170U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575252A (en) * | 2013-11-04 | 2014-02-12 | 河海大学 | Miniature static pressure gauge for monitoring settlement of soft soil roadbed of highway |
| CN105651248A (en) * | 2016-03-31 | 2016-06-08 | 浙江中浩应用工程技术研究院有限公司 | Ceramic hydrostatic level |
| CN114413840A (en) * | 2021-11-13 | 2022-04-29 | 国网辽宁省电力有限公司沈阳供电公司 | Intelligent Internet of things differential pressure type static level gauge and detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |